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Bond [772]
3 years ago
9

Which chemical equation is unbalanced? C + O2 mc024-1.jpg CO2 Sr + O2 mc024-2.jpg 2SrO 6H2 + 3O2 mc024-3.jpg 6H2O H2 + H2 + O2 m

c024-4.jpg H2O + H2O
Chemistry
2 answers:
Anna007 [38]3 years ago
8 0
<span>Sr + O2--->2SrO</span><span>is the right answer</span>
Dafna11 [192]3 years ago
3 0
<span>The correct answer would be the second option. It is the reaction Sr + O2 = 2SrO that is not balanced correctly. To be able to say that an equation is balanced, it should be that the number of each atom in the reactant and the product side is equal. As we can see, at the reactant side there is only one Sr while in the product there are 2 Sr atoms.

</span>
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Based on the kinetic molecular theory, which of the following statements is correct about a sample of gas at a constant temperat
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Answer:

C) It has a constant average kinetic energy

Explanation:

The average kinetic energy of the particles in a gas is directly proportional to the temperature of the gas, according to the equation.

k is the Boltzmann's constant

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Therefore, temperature of a gas is a measure of the average kinetic energy of the particles.

In this problem, we are told that the gas is at constant temperature (and volume): therefore, according to the previous equation, this means that the average kinetic energy is also constant.

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4 years ago
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3 years ago
You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30
dimaraw [331]

Answer:

0.00370 g

Explanation:

From the given information:

To determine the amount of acid remaining using the formula:\dfrac{(final \ mass \ of \ solute)_{water}}{(initial \ mass \ of \ solute )_{water}} = (\dfrac{v_2}{v_1+v_2\times k_d})^n

where;

v_1 = volume of organic solvent = 20-mL

n = numbers of extractions = 4

v_2 = actual volume of water = 100-mL

k_d = distribution coefficient = 10

∴

\dfrac{(final \ mass \ of \ solute)_{water}}{0.30  \ g} = (\dfrac{100 \ ml}{100 \ ml +20 \ ml \times 10})^4

\dfrac{(final \ mass \ of \ solute)_{water}}{0.30  \ g} = (\dfrac{100 \ ml}{100 \ ml +200 \ ml})^4

\dfrac{(final \ mass \ of \ solute)_{water}}{0.30  \ g} = (\dfrac{1}{3})^4

\dfrac{(final \ mass \ of \ solute)_{water}}{0.30  \ g} = 0.012345

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3 years ago
which of the following is an example of an electromagnetic wave A. an ocean wave B. A sound wave C. A light wave D. A wave trave
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